On this type of cartridges, the developer roller seal cover should always be installed in order to protect the exposed developer rollers during transportation, it will also help avoid leaks and it will give cartridges an OEM finish.

You will save money when utilizing a developer roller seal covers on your remanufactured cartridges by increasing the percentage of empties with good developer rollers that are very expensive and in some cases not even available as an aftermarket replacement part. You can provide end users with instruction on how to install them and request that they return the empty cartridges.